395 



^flattened, and to the tenth feebly produced on one side at 

 apex, all unarmed. Palpi small. Prothorax transverse, 

 unarmed. Elytra almost parallel-sided to near apex. Meta- 

 sternum with episterna wide and narrowed posteriorly. 

 Abdomen considerably produced beyond the elytra, all the 

 segments long. Legs moderately long; front coxae moderately 

 separated, front coxal cavities open behind, obliquely pro- 

 duced at their sides; tibiae bispinose at apex, tarsi with 

 claw- joints lightly dentate at base. 



Excluding the abdomen, the general appearance of the 

 remarkable insect described below is somewhat suggestive of 

 Phacodes, near which genus it may be provisionally placed, 

 despite the unarmed antennae (unarmed also in Oebarina and 

 Aesiotyche). The elytra do not nearly cover the abdomen, 

 and this is due, not to their abbreviation (as in Hesthesis), 

 but to the great development of the abdomen. I was under 

 the impression that the first specimen seen (from Mullewa) 

 was a female captured before full maturity, but Mr. Brown 

 took numerous specimens, all of which have the abdomen 

 considerably prolonged, and on the specimen figured an 

 oedeagus is protruding. The upper-surface of the abdomen 

 is margined on each side (as on most Staphylinidae). 



Gastrophacodes ventricostjs, n. sp. 

 PI. xxxii. fig. 4. 



Black, parts of elytra, antennae, and legs obscurely 

 reddish-brown. With very short and sparse setae, but with 

 straggling hairs on sides of jnrothorax, on muzzle, and on 

 antennae and legs. 



Head with median line deep and irregular in middle, 

 but scarcely traceable to base; with coarse and irregular 

 punctures; lower face transversely sculptured. Antennae 

 with second joint (excluding its socket piece) about one-fourth 

 the length of third, third to seventh subequal in length, 

 eighth to tenth slightly decreasing in length, eleventh dis- 

 tinctly longer than tenth. Prothorax about one-fourth wider 

 than long, apex with a narrowly-impressed line across under- 

 surface and sides, but scarcely traceable across middle, sides 

 somewhat irregularly swollen about middle; with coarse, 

 crowded, and irregular punctures, but leaving an impunctate 

 median line on basal half (sometimes traceable to apex). 

 Scufellum shagreened, about as wide as long. Elytra about 

 as wide as widest part of prothorax, almost parallel-sided to 

 near apex, where each is widely separately rounded; basal 

 portion with coarse and rather crowded punctures, becoming 

 much smaller and shallower posteriorly. Under-surface with 

 punctures varying from coarse and irregular to sparse and 



